20BS12

Annular Ball Bearing

NSN 3110-00-156-5055

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

1 EA

NIIN:

001565055

Technical Specifications of NSN

Overall Width:

14.0 millimeters

Bore Diameter:

20.00 millimeters

Overall Outside Diameter:

47.00 millimeters

Lubrication Material:

Grease

Surface Finish:

Ground

Retainer Fabrication Method:

Pressed

Alignment Type:

Self-aligning

Load Direction:

Angular

Bore Shape:

Straight

Internal Fit-up Designation:

Standard

Internal Fit-up Contact Angular Direction:

Inward convergent

Self-alignment Location:

Internal

Standard Tolerance Designation:

Abec no.1

Contact Angle:

25.0 degrees

Lubrication Material:

Grease

Lubrication Material Specification:

Mil-g-18709 military specification single material response

Material:

Steel

Style Designator:

28b loading groove, non-separable

Style Designator:

Loading groove, non-separable

Nondefinitive Specification/std Data:

123 type and 00 grade

NSN:

3110-00-156-5055

Item Name:

Rotor Bearing

Cage Code:

70413

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Part Identification

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

00014

FIIG:

A044A0

Concept No.:

App. Key:

Cond. Code:

Status:

Part Materials

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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Pricing & Availability

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Definition Definition of approved item name (AIN): "Rotor Bearing"

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing, ball, duplex. Excludes bearing, ball, airframe.